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1. A processor-implemented method for presenting an advertisement, the method comprising:
receiving via a network, using at least one processor, a request to access a desired web page from a client device, the request to access the desired web page being generated by a processor of the client device in response to selection of a link to the desired web page from another web page having a search result that includes the link, the search result being generated by a search engine in response to a search query received by the search engine from the client device over the network; transmitting a response to the request via the network to the client device, the response including both the desired web page and an ad script for execution by the processor of the client device after receipt of the response over the network, the ad script, upon execution by the processor of the client device, being configured to generate an ad request at the client device that includes one or more ad parameters for determining one or more as yet undetermined advertisements for the client device, the ad parameters generated upon execution of the ad script including a network address that includes the search query resulting in the link to the desired web page, the search query being included in the ad parameters for determining the one or more as yet undetermined advertisements for the client device; receiving, after execution of the ad script by the processor of the client device, the generated ad request from the client device over the network, the ad request including the one or more ad parameters which include the search query for determining the one or more as yet undetermined advertisements for the client device; extracting the search query from the network address included in the ad parameters of the ad request received over the network from the client device; and, determining one or more advertisements for presentment to the requester, the one or more advertisements being determined based on the search query extracted from the network address included in the one or more ad parameters of the received ad request.
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